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18x22x1 Air Filter Merv 8
18x22x1 AC Filter Merv 11
18x22x1 Furnace Filter Merv 13
18x22x1 Filter Merv 13 Titanium
18x22x1 Filter Merv 10 Carbon
18x22x1 Filter Merv 8 Carbon 18x22x1 Filter Merv 8 Carbon
Protects All Against
  • Pollen protection
  • Dust protection
  • Mold protection
  • Dust Mites protection
    Dust Mites
  • Bacteria protection
  • Pet Dander protection
    Pet Dander
  • Smoke protection
  • Viruses protection
  • Cooking Smoke protection
  • Odor protection
  • Smog protection
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18x22x1 Air Filter

AC Furnace Air Filter 18x22x1 -Inches

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Odor Eliminator

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Product Description

Item Model Number: FKFB18X22
Brand: Filter King
Filter size: 18x22x1
Actual Size: 17.5 x 21.5 x .75
1-Inch Filter
MERV 8 Filter Rating
Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Residential / Commercial Use

Manufactured in the US

Why Buy Air Filters From Filter King?


In comparison to fiberglass filters, 18x22x1 pleated air filters are at least 20 times more effective. All Filter King air filters are made in the US.


Filters frames are made out of heat resistant paperboard with horizontal grid supports. Able to withstand temperatures of up to 200° F and resistant to moisture, the paperboard frames do not support microbial growth and outperforms traditional cardboard frames.


Chemical free, electrostatically charged synthetic polyester media is pleated, maximizing the surface area, to capture a high number of airborne particles as small as 0.3 microns with low air flow resistance. To increase durability, the media is supported with a corrosion resistant steel wire.

18x22x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 18x22x1 Air Filter?

Filter King AC & furnace filters aren’t the typical fiberglass filters that need to be replaced every 30 days. Our filters can typically be used for 3 to 5 months before requiring to be changed. Naturally, a variety of things influence filter lifespan.

Some of the factors that influence your filter’s life include outdoor air quality, whether pets are in the home, and how well your HVAC system is maintained.

Your air filter becomes clogged over time by trapped particles, preventing airflow. The efficiency of the HVAC filter declines. Your system must work harder to heat and cool your home. The extra strain on the HVAC system causes higher energy bills. Regular home air filter replacements can prevent expensive system repairs or replacements down the road.

You should change your filter more frequently if you notice:

  • Household dust build-up
  • The air isn’t cooling as is used to
  • There’s more dust near the air vents
  • A dirty filter surface
  • Higher energy bills
  • Burning smells near your HVAC system.

18x22x1 Air Filter

Filter King 18x22x1 size air filters act as important tools your air systems use to keep incoming airflow clean. The filtration process is able to stop irritants from polluting your air systems by trapping them in their tight mesh weaving. The cleaner the airflow, the better your home’s indoor air quality, and the more comfortable your home will be. The air filters in your home keep the air clean, but become dirtier over time and require replacement before they begin to cause problems.

The air quality in your home is affected by your air filters, and their ability to both clean out incoming airflow and keep it coming in smoothly. The air filters in your home become less effective over time as they continuously become covered in captured irritants. Dirty air filters are a problem for their air systems and your home as a whole, a problem that worsens over time. Your air systems become strained when they need to handle air blockages, and the air inside your home becomes dried out and stagnant over time.

Your home’s air filters will need consistent maintenance in order to prevent several issues from developing. We offer new 18x22x1 size air filter replacements to help keep the airflow coming in clean. We also have a premium delivery services available, complete with a subscription option to have your air filters arrive on a regular basis. Our filters have a MERV (Minimum Efficiency Reporting Value) rating of eight, and are capable of blocking out irritants like:

  • Pollen
  • Dust
  • Mold
  • Dust Mites
  • Bacteria
  • Pet Dander
  • Smoke
  • Viruses

18x22x1 Furnace Filters

Furnace air filters are generally used to prevent the heated airflow traveling throughout your home from bringing in any harmful irritants. The filters go in between where the air becomes heated and where it the blower fan distributes it. When the filters become dirty that means the heated airflow becomes hindered or blocked, leading to some serious issues with temperatures. The temperatures throughout your home may fluctuate, or the furnace may become erratically hot. These problems are avoidable with new air filters, order today and have them installed to keep airflow passing through fresh and clean.